<!-- 数据统计->数据报表 -->
<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>订单管理</el-breadcrumb-item>
      <el-breadcrumb-item>订单列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
  import echarts from 'echarts'

  export default {
    data() {
      return {
        // 需要合并的数据
        options: {
          title: {
            text: '用户来源'
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross',
              label: {
                backgroundColor: '#E9EEF3'
              }
            }
          },
          grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
          },
          xAxis: [
            {
              boundaryGap: false
            }
          ],
          yAxis: [
            {
              type: 'value'
            }
          ]
        }
      };
    },

    components: {},

    computed: {},

    async mounted() {
      // 基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));
      // 发起请求获取数据
      const { data: res } = await this.$http.get('reports/type/1')
      if (res.meta.status !== 200) return this.$message.error('获取折线图数据失败！')
      // 准备数据和配置项
      const result = Object.assign(this.options, res.data)
      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(result);
    },

    methods: {}
  }

</script>
<style lang='stylus' scoped>
</style>